Inside Trail - Knickerbocker Canyon Trail Run

Knickerbocker Canyon Trail Run, staged by Inside Trail Racing, unfolds in the Auburn/Cool area of California along the historic Western States Trail. Runners choose from four distances: 5K, 10K, Half Marathon, and 35K. The routes go out to No Hands Bridge, tackle the K2 training hill, and return via the river toward Cool, featuring long switchbacks on the Dam Hill.

Distances include substantial elevation gains on predominantly technical dirt trails and fire roads (5K ~650 ft; 10K ~1,150 ft; Half ~3,000 ft; 35K ~4,800 ft). The event is cupless, capped at 400 runners, and uses chip timing with multiple aid stations. Visit the organization's website for the most recent information.